Some aspects of quasi-steady state of nitrogen-14 quadrupolar spin-system

The behaviour of nuclear quadrupole resonance (NQR) signal was studied after applying one or more additional RF pulses to the spin-system which was previously prepared to be in the quasi-steady state. The experiments revealed some peculiarities in the behaviour of the signals which are important for the understanding of the dynamic properties of the quadrupolar spin-system. The experimental results are presented for polycrystalline NaNO2.